Which factor is essential for open motor skills?

• A. Repetitively performing the same task
• B. Feedback after movement only
• C. Environmental unpredictability with some adaptation
• D. Environment unpredictability and constant adaptation

Answer: (D)

Open motor skills require moving in environments that are continually changing, so the performer must constantly adjust in real time. The essential factor is environmental unpredictability paired with ongoing adaptation during the movement. In hippotherapy, that means responding to the horse’s varying rhythm, shifts, and any new stimuli from the surroundings, while continuously recalibrating balance, posture, and coordination as the task unfolds. Repeating the same task happens in a closed skill environment where predictability reduces the need for constant change. Feedback after the movement alone isn’t sufficient for open skills, because adjustments are needed during the action itself, not just after it. While some unpredictability with occasional adaptation is part of it, the defining requirement for open motor skills is unpredictable surroundings that demand constant adaptation throughout the movement.